Just setup sensor-less homing and noticed in the wiki you can use it for firmament loading. What would be the practical use of this?

In systems with a long Bowden tubes, you ideally want to feed filament quickly through the Bowden tube until it reaches the hot end, and then extrude a little filament slowly to prime the nozzle. You can accomplish the first step by reducing the motor current (M913 then M400) and using a G1 S1 Ennn Fnnn move to feed filament in until the motor stalls.

Unfortunately, stall detection doesn't work at low motor speeds, so extruder stall detection is likely to be useful only when using highly-geared extruders. You can set it up already, just configure stall detection for the extruder and select the "Pause on stall" action.